Ch 12 and 13 review – Flashcards
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Outer protective layer of the eye
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sclera
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Transparent anterior part of the sclera, which allows the light rays to enter the eye, is the
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Cornea
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The function of the lens
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Focus and bend light
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Iris
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A pigmented muscular structure
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Innermost layer of the eye that contains vision receptors is the
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Retina
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Tears are produced by the
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Lacrimal glands
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Conjunctiva
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Mucous membrane lining the eyelids
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Portion of the eye that lies directly behind the pupil
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Lens
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Middle layer of the eye, which is interlaced with many blood vessels, is the
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Choroid
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Oil glands in the upper and lower edge of the eyelids that help to lubricate the eye are called
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Meibomian glands
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eyelid
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Blephar/o
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Ocul/o
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eye
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ophthalm/
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eye
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cornea
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kerat/o
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-plegia
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Paralysis
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Abnormal condition of crossed eyes
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strabismus
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Clouding of the lens of the eye
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cataract
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Sty
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hordeolum
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Term that means a defective curvature of the refractive surfaces of the eye
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Astigmatism
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Thin tissue growing into the cornea from the Conjunctiva is
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pterygium
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Glaucoma is an eye disorder characterized by
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optic nerve damage caused by intraocular pressure
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Surgical removal of the eyeball
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enucleation
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Surgical creation of a drain to reduce intraocular pressure is called
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Trabulectomy
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A procedure to repair tears in the retina by use of an intense beam of light from a laser is
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Retinal photocoagulation
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Administration of a miotic agent causes
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Pupillary constriction
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visual acuity
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sharpness of vision
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Term mydriatic is defined as
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agent that dilates the pupil
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What is usually increased with glaucoma
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IOP(intraocular pressure)
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Abbreviation for a method of removing cataracts using an ultrasonic needle probe to break up the lens, which is then aspirated, is
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PHACO
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The structure of the ear located in the skull bone behind the external auditory canal is the
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Mastoid bone
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The malleus, incus, and stapes make up the
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Ossicles
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The part of the ear that directs sound waves into the external auditory canal is the
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Auricle
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Sound vibrations are transmitted through the middle ear by the
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Ossicles
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The external auditory canal and middle ear cavity are separated by the
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Tympanic membrane
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Portion of the ear that contains receptors that help the body to maintain its equilibrium is the
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Semicircular canals and vestibule
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Stucture that equalizes pressure
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Eustachian tube
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The glands that secrete earwax or cerumen are located in the
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External auditory canal(meatus)
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Organ of hearing is located in the
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Cochlea
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Eustachian tube connects the middle ear and the
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Pharynx
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Aur/i
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Ear
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Ot/o
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Ear
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hearing
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Aud/i
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myring/o
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Tympanic membrane
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Meniere disease is a chronic disease of the
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Inner ear
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Ringing in the ears
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Tinnitus
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Gland that secretes earwax
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Cerumin
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Labyrinth/o
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Inner ear
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Chronic disease of the inner ear characterized by vertigo, tinnitus, aural fullness, and fluctuating hearing loss called
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Meniere Disease
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miotic agent
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causes pupillary constriction
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-opia
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vision
